CARDIOLOGY
AORTIC STENOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In Labeo there are ____ pairs of aortic arches.
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3
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4
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5
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6
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Explanation:
Detailed explanation-1: -The fourth aortic arch develops unsymmetrically. The left fourth arch forms the proximal part of the adult aortic arch, whereas the right one evolves into the right subclavian artery. The last two arches, 5 and 6, do not appear in large arch shape.
Detailed explanation-2: -Arch 4. Also known as the systemic arch. The fourth right arch forms the most proximal segment of the right subclavian artery, as far as the origin of its internal thoracic branch. The fourth left arch forms a part of the arch of the aorta, between the origin of the left common carotid and the left subclavian arteries.
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